I have a 4x4 Square Foot Garden in my backyard. I've had it for a couple years, and it has been a lot of fun. I had a 1x8 SFG box on my deck, but it began to rot through on the bottom. We decided to get rid of it when we had our deck rebuilt. I'm learning more about soil and how to keep it healthy.
I just actually bought a new system for composting with worms. I can't wait to get the stand set up and transfer my worms! They make great compost. I have a regular ol' compost pile off the side of the house, too. I toss in pokeweeds, sticks, and other things from the yard. The worms get my food scraps - no meat, heavy oils, or dairy though. That's not a problem though because I'm a vegetarian. They've been getting a lot of cantaloupe rind lately. ha.
So, yes, I have a garden and I'm really into composting.